Bismarck, ND Weather & Growing Conditions
Today
51°F
Partly Sunny
Partly sunny. High near 51, with temperatures falling to around 48 in the afternoon. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Partly Sunny | 7 to 14 mph NW | 0% |
| Tonight | 28°F | Partly Cloudy | 6 to 10 mph N | 0% |
| Thursday | 43°F | Mostly Sunny | 6 mph NE | 0% |
| Thursday Night | 25°F | Partly Cloudy | 5 mph SE | 0% |
| Friday | 50°F | Mostly Sunny | 5 to 8 mph S | 0% |
| Friday Night | 30°F | Mostly Clear | 6 mph S | 0% |
| Saturday | 57°F | Sunny | 6 to 16 mph W | 0% |
| Saturday Night | 31°F | Mostly Clear | 2 to 9 mph W | 0% |
| Sunday | 58°F | Sunny | 2 to 10 mph S | 0% |
| Sunday Night | 38°F | Partly Cloudy | 8 mph SW | 0% |
| Monday | 59°F | Mostly Sunny | 8 to 15 mph NW | 0% |
| Monday Night | 32°F | Mostly Clear | 2 to 7 mph W | 1% |
| Tuesday | 55°F | Mostly Sunny | 2 to 7 mph SW | 1% |
| Tuesday Night | 35°F | Partly Cloudy | 5 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bismarck, ND
Last spring frost
May 14
First fall frost
Sep 30
Growing season
138 days
Hardiness zone
4a
Explore more for Bismarck, ND: full frost dates · planting calendar · North Dakota frost dates
Climate data from the nearest NOAA station, Bismarck Wfo, Nd (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.